Ahck!, I can't stop this, it is like a drug, I sleep, eat and drink thinking of my next quest. Who feels my addiction?! I still go to work but my mind is no longer on the job. .... this sucks.
I heard that if you follow the main quest line, there's like 40-45 hours worth of gameplay. Instead try and do all the side quests and spend some time sightseeing, it should present new opportunities (more quests). Oh, but what am I doing here? Feeding your addiction? I enjoy the game pretty much myself, but I am steering clear of getting too addicted to it, it's going to take a long while till I've done everything that can be done in there